Chapter 11 verse 18
“You are the imperishable, the supreme Being worthy to be known. You are the great treasure-house of this universe. You are the imperishable protector of the eternal dharma. In my opinion, you are the ancient Purusa.”
Aksharam and Veda means “imperishable” and “to know”. Arjuna says Krishna is at once both imperishable, reflects the indestructible part of the Universe which is Supreme Soul itself as well as the only thing all of us should strive to know. Vedas are named as the truth to be known. Root of all vedic teaching is to reach godliness and knowledge that everything which pervades the universe is the Supreme Soul and Being. Arjuna also calls his “nidhaanam”- treasure house and support for the entire universe. I wonder why the word “patience” in tamil also goes by nidhaanam- being patient to attain what is ordained for you is a godly trait. Arjuna concludes this sloka saying Krishna in his opinion is also the Purushosttama that the ancient, timeless, imperishable Sanatana Dharma calls the creator and sustainer of the Universe.